Pith Number

pith:2QBKEVSU

pith:2025:2QBKEVSUPXF35EH6BVJKO74WJL

not attested not anchored not stored refs pending

MeerKAT Discovery of an Infalling Cold Gas Tail onto the Nearby Barred Spiral Galaxy, NGC 5643

F. M. Maccagni, J. Healy, K. C. Santana, R. Deane

arxiv:2505.15983 v1 · 2025-05-21 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QBKEVSUPXF35EH6BVJKO74WJL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T11:07:28.117228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d402a256547dcbbe90fe0d52a77f964ae6e1027504ca0ea9c19a02dc3b8022ff

Aliases

arxiv: 2505.15983 · arxiv_version: 2505.15983v1 · doi: 10.48550/arxiv.2505.15983 · pith_short_12: 2QBKEVSUPXF3 · pith_short_16: 2QBKEVSUPXF35EH6 · pith_short_8: 2QBKEVSU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2QBKEVSUPXF35EH6BVJKO74WJL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d402a256547dcbbe90fe0d52a77f964ae6e1027504ca0ea9c19a02dc3b8022ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16b3574bd529a727c17b74a8ccf373f1ecc65b935f788b1c59170cd2fd5815d1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-21T20:03:30Z",
    "title_canon_sha256": "c67324eea772f56543e52c07c772589d2eceb0ad1612a68fb6db820d5e0e4162"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.15983",
    "kind": "arxiv",
    "version": 1
  }
}